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How to measure 3phase L-L 440 volt using STM32 ADC?

i want to build circuit that can measure AC voltage 0-600V AC using STM32 it there any sample circuit and example code of it..i have try some circuit ...1) 0-400v ac --> stepdown transformer --> 0-15v ac --> dc --> resistor divider --> adc pin MCU b...

Resolved! Connect STM32F4 with smart card ISO7816

Hi, everybody. My task is to connect STM32F4 discovery Board with Smart Card ISO7816. I don't use interface ST8024CDR only hooked paid directly by the scheme specified in the image:I tried to adapt the Cubex project to STM32F1xx-EVAL. ATR reception d...

0690X000008ANWeQAO.png

STM32F769 Discovery board capturing input on timer 3

I am trying to capture input from an external source. Using CubeMX as a guide, I configured timer 3 like this:/* TIM3 init function */ void MX_TIM3_Init(void) { // PC8 ------> TIM3_CH3 TIM_IC_InitTypeDef sConfigIC = {0}; GPIO_InitTypeDef GPIO_...

MPlan.7 by Associate III
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  • 7 replies
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Toggle Mode of Advanced Timers

Dear AllI am playing with TIM 1 to better understand its functionalities. My tests indicate that in the toggle mode (set through OCxM bits of CCMR): 1) The counter operates in the up-down mode, even if the CMS bits of CR1 are set to 00 (which is for ...

Amir1 by Associate II
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  • 5 replies
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How inaccurate is the RTC?

Hello! I wanted to know how inaccurate the RTC is when working with LSI or LSE.Reading from posts and data sheet of the MCU, I saw that LSI is much more imprecise than the LSE. I wanted to know if there was an equation that would allow me to estimate...

Emm1592 by Associate II
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  • 6 replies
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HSI clock and baudrate ?

Dear Members,I changed my clock from MSI to HSI but my SPI and UART baudrate becoming wrong,What do I miss here ?thanks

I operated according to this instruction, but CAN failed to wake up. May I ask what is the reason?

/** * @brief Enters the low power mode. * @param CANx: where x can be 1 or 2 to to select the CAN peripheral. * @retval status: CAN_Sleep_Ok if sleep entered, CAN_Sleep_Failed in an  *        other case. */uint8_t CAN_Sleep(CAN_TypeDef* CANx){ uint8_...

hzhao.5 by Associate
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  • 1 replies
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Resolved! Set date and time RTC in main()

Hello, I want to know if it is possible to set date and time of the RTC in the main() function.I'm working with the LSI and I know that is very inaccurate. My idea is to -"re-initialize" (set manually the date and time) the RTC every 1 week for examp...

Emm1592 by Associate II
  • 939 Views
  • 1 replies
  • 0 kudos